| 生物土壤与生态 |
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| Positive Functions of Sodium in Plants |
| LI San-xiang1,2, ZHOU Xiang-rui1, WANG Suo-min1 |
| 1.School of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China; 2.Department of Biology, Tianshui Normal University, Tianshui 741000, Gansu, China |
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Abstract For a long time, people always believe that sodium(Na) is a main factor which induces salt stress of plant. So the researches about sodium focus on this aspect now. However, although many results of study in resent years show that high concentration sodium injures plants, plant growth needs certain quantity of sodium. Low concentration sodium can promote plant growth instead of inhibiting it. The paper introduced the advantageous function of sodium in plant growth from aspects of stimulation function, replacing potassium(K) function, physiological function in metabolism and in stress resistance of plants. This paper gives some references for research on physiological function of low concentration sodium in the growth and development of plants.
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Received: 11 April 2007
Published: 20 May 2008
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2008, Vol. 28 
